... films,felts,filters,screens,bottles,gravels,stones,sand,metal parts,steel plates,machines,etc.Spraying:Photo-etchants,oils, ... nozzle;CERTIIM is one-shot injection molded spray tip by molding precision-made ceramic orifice into plastic retainer.MaterialB( Brass) ... or othersSpray orifice:Ceramics;Metal Parts:B(Brass) or S303(Stainless steel 303);CERTIIM’s plastic retainer:PVDF (Polyvinylidenfluoride); ...